Most businesses render returns and pay tax quarterly. A return must be filed and tax paid by the last working day of the month following the end of the relevant accounting period (Regulation 11 (2) and Regulation 15 of the Landfill Tax Regulations 1996 [S.I 1996/1527]). If the last working day falls on a weekend or public holiday the due date is brought forward to the last working day.

The Central Collection Unit (CCU LT) send out Landfill Tax returns (Form LT100) approximately 10 days before the end of each accounting period. The CCU will issue a prime assessment 7 days after the due date if no return is received. The second and third assessments issued in any 12-months period will be inflated by 25% each time.

The preferred methods of payment are credit transfer or cheque. Payment may also be accepted in cash, Euro or direct debit.

The enforcement timetable for civil recovery of an LT debt is generally:

Tax shown as due on return

Due date + 1

Assessment issued in absence of a return

Issue date + 8

Assessment issued in the absence of an acceptable return / officers’ assessment